[Mono-bugs] [Bug 699059] New: Unsafe interop code fails to be excecuted

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https://bugzilla.novell.com/show_bug.cgi?id=699059

https://bugzilla.novell.com/show_bug.cgi?id=699059#c0


           Summary: Unsafe interop code fails to be excecuted
    Classification: Mono
           Product: Mono: Runtime
           Version: 2.10.x
          Platform: x86
        OS/Version: Ubuntu
            Status: NEW
          Severity: Major
          Priority: P5 - None
         Component: interop
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: ToXedVirus at gmail.com
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---
           Blocker: ---


Created an attachment (id=433780)
 --> (http://bugzilla.novell.com/attachment.cgi?id=433780)
Testcase of this

User-Agent:       Mozilla/5.0 (X11; Linux i686) AppleWebKit/534.24 (KHTML, like
Gecko) Ubuntu/10.10 Chromium/11.0.696.71 Chrome/11.0.696.71 Safari/534.24

If I pass an unsafe struct with a pointer modifier, the runtime complains:

Unhandled Exception: System.Runtime.InteropServices.MarshalDirectiveException:
Can not marshal 'parameter #1': Pointers can not reference marshaled
structures. Use byref instead.

Example:
unsafe ... {

  public struct strarray
  {
    public sbyte **strarr;
    public int length;
  }

  [DllImport("test")]
  public static extern void outfunction(strarray *arr);

  public static string[] marshalled_outfunction()
  {
    strarray arr;
    outfunction(&arr); // exception
    ...
  }
}

It works with 2.8 and fails to work on all subsequent versions!

Reproducible: Always




You can use git and checkout my monobugs repository on github:
https://github.com/txdv/monobugs
the code is in unsafe/

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